Hoverstone Pilgrim

A colorless, five-mana flying blocker that happens to carry graveyard hate is a strange bundle of jobs, and the point is that it needs no color to do any of them. The 2/5 body with Flying and Ward is built to survive: it walls flyers, shrugs off cheap removal because the opponent has to pay two extra to touch it, and sticks around long enough for the activated ability to matter. That ability is the reason the card exists in a colorless slot: for two mana, repeatable, it lifts a card from any graveyard to the bottom of its owner's library, which is incremental disruption for the deck that has no natural access to graveyard interaction. Bottoming rather than exiling is the deliberate softening; the target is not gone forever, just buried under a full library, so the effect nags at recursion engines and flashback plans without hard-answering them. What makes it distinct from the dedicated exile-hosers is that the hate is bolted onto a defensive artifact creature, so an artifact-heavy deck gets a durable body and a graveyard valve in the same card rather than dedicating a spell slot to a narrow answer. It is a utility piece dressed as a wall: slow, resilient, and colorless enough to slot into any strategy that wants a patient, repeatable way to grind an opponent's graveyard down over the long game.